Linux下VSCode中Red Hat Java语言服务启动触发NullPointerException

启动Red Hat Java语言服务时触发NullPointerException，日志完整报错信息如下：

message: '[Error - 11:53:59 AM] Sep 23, 2022, 11:53:59 AM Error in JDT Core during AST creation\n' +
    'Cannot invoke "org.eclipse.jdt.internal.compiler.util.JrtFileSystem.walkModuleImage(org.eclipse.jdt.internal.compiler.util.JRTUtil$JrtFileVisitor, int)" because the return value of "org.eclipse.jdt.internal.compiler.util.JRTUtil.getJrtSystem(java.io.File, String)" is null\n' +
    'java.lang.NullPointerException: Cannot invoke "org.eclipse.jdt.internal.compiler.util.JrtFileSystem.walkModuleImage(org.eclipse.jdt.internal.compiler.util.JRTUtil$JrtFileVisitor, int)" because the return value of "org.eclipse.jdt.internal.compiler.util.JRTUtil.getJrtSystem(java.io.File, String)" is null\n' +
    '\tat org.eclipse.jdt.internal.compiler.util.JRTUtil.walkModuleImage(JRTUtil.java:242)\n' +
    '\tat org.eclipse.jdt.internal.core.JavaProject.loadModulesInJimage(JavaProject.java:983)\n' +
    '\tat org.eclipse.jdt.internal.core.JavaProject.computePackageFragmentRoots(JavaProject.java:782)\n' +
    '\tat org.eclipse.jdt.internal.core.JavaProject.computePackageFragmentRoots(JavaProject.java:1103)\n' +
    '\tat org.eclipse.jdt.internal.core.JavaProject.computePackageFragmentRoots(JavaProject.java:1048)\n' +
    '\tat org.eclipse.jdt.internal.core.JavaProject.computePackageFragmentRoots(JavaProject.java:1025)\n' +
    '\tat org.eclipse.jdt.internal.core.JavaProject.buildStructure(JavaProject.java:538)\n' +
    '\tat org.eclipse.jdt.internal.core.Openable.generateInfos(Openable.java:266)\n' +
    '\tat org.eclipse.jdt.internal.core.JavaElement.openWhenClosed(JavaElement.java:597)\n' +
    '\tat org.eclipse.jdt.internal.core.JavaElement.getElementInfo(JavaElement.java:328)\n' +
    '\tat org.eclipse.jdt.internal.core.JavaElement.getElementInfo(JavaElement.java:314)\n' +
    '\tat org.eclipse.jdt.internal.core.JavaProject.getModuleDescription(JavaProject.java:3917)\n' +
    '\tat org.eclipse.jdt.internal.core.BasicCompilationUnit.initAttributes(BasicCompilationUnit.java:86)\n' +
    '\tat org.eclipse.jdt.internal.core.BasicCompilationUnit.<init>(BasicCompilationUnit.java:67)\n' +
    '\tat org.eclipse.jdt.core.dom.ASTParser.internalCreateAST(ASTParser.java:1176)\n' +
    '\tat org.eclipse.jdt.core.dom.ASTParser.createAST(ASTParser.java:868)\n' +
    '\tat org.eclipse.jdt.core.manipulation.CoreASTProvider$1.run(CoreASTProvider.java:294)\n' +
    '\tat org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)\n' +
    '\tat org.eclipse.jdt.core.manipulation.CoreASTProvider.createAST(CoreASTProvider.java:286)\n' +
    '\tat org.eclipse.jdt.core.manipulation.CoreASTProvider.getAST(CoreASTProvider.java:199)\n' +
    '\tat org.eclipse.jdt.ls.core.internal.handlers.SemanticTokensHandler.full(SemanticTokensHandler.java:46)\n' +
    '\tat org.eclipse.jdt.ls.core.internal.handlers.JDTLanguageServer.lambda$53(JDTLanguageServer.java:1051)\n' +
    '\tat org.eclipse.jdt.ls.core.internal.BaseJDTLanguageServer.lambda$0(BaseJDTLanguageServer.java:75)\n' +
    '\tat java.base/java.util.concurrent.CompletableFuture$UniApply.tryFire(Unknown Source)\n' +
    '\tat java.base/java.util.concurrent.CompletableFuture$Completion.exec(Unknown Source)\n' +
    '\tat java.base/java.util.concurrent.ForkJoinTask.doExec(Unknown Source)\n' +
    '\tat java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(Unknown Source)\n' +
    '\tat java.base/java.util.concurrent.ForkJoinPool.scan(Unknown Source)\n' +
    '\tat java.base/java.util.concurrent.ForkJoinPool.runWorker(Unknown Source)\n' +
    '\tat java.base/java.util.concurrent.ForkJoinWorkerThread.run(Unknown Source)\n',
  level: 'info',
  timestamp: '2022-09-23 11:53:59.397'
}

环境与问题特征 #

• 运行环境：Linux系统
• VSCode版本：1.71.2
• 仅安装v0.25.1版本的Java扩展包，未安装其他Java相关组件
• 问题在简单项目中也会触发，但并非必现，存在不稳定性

内容的提问来源于stack exchange，提问作者user2609605